A deputy U.S. Marshal traveling to London to help extradite a criminal defendant has been taken into custody by British authorities after he was accused of sexually abusing a female passenger on board a Delta flight, four law enforcement officials said.

The federal marshal was one of two deputies traveling on a Delta flight from New York City’s JFK Airport to London when the woman complained to the flight crew that she had been inappropriately touched during the flight, the sources said.

[Alcohol was involved, which likely won’t surprise anyone, and the report hints that there are multiple victims. Both deputies had been drinking, according to the report, but only one was arrested; the other was sent home. No word yet on whether and when the US Marshals will send more deputies to complete their extradition mission. — Ed]